Air filter for an internal combustion engine



FIG. 1 is a perspective view of a bottom, end and side of an air filter for an internal combustion engine showing my new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a side elevational view thereof, the opposite side being a mirror image;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is an end elevational view thereof, the opposite end being a mirror image.

The hexagonal pattern shown in FIGS. 1, 2 and 4, the oval pattern shown in FIGS. 1 and 5, and the pleats of the filter shown in FIGS. 1-4, are understood to repeat uniformly throughout the areas represented. 

The ornamental design for an air filter for an internal combustion engine, as shown and described. 